GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION ABOUT THE WELL

CASING POLICY:
Casing Ø508,0 mm – 245 m;
Casing Ø339,7 mm – 2700 m; 
Casing Ø244,5 mm – 4130 m; 
Liner Ø193,7 mm – 4100-4285 m;
Liner Ø139,7 mm – 4065-4550 m;
Slotted Liner Ø89,0 mm – 4530-4620 m.

DRILLING FLUID TYPE: 
Casing Ø508,0 mm – fresh-clay-drilling fluid; 
Casing Ø339,7 mm – BRNSTF-polymer drilling mud with low level of solid phase; 
Casing Ø244,5 mm – Biocar-MT;
Liner Ø193,7 mm – Biocar-MT; 
Liner Ø139,7 mm – invert emulsion drilling mud «Witer II»;
Slotted Liner Ø89,0 mm – invert emulsion drilling mud «Witer II».

Well drilling term – 197 days.
Temperature on depth 4620 m - 135оС. 
Drilling fluid density on interval 2700-4130 m - 1140 kg/m3.
Drilling fluid density on interval 4285-4620 m - 1340 kg/m3.
Drilling fluid density on interval 4285-4620 m - 1160 kg/m3.